Definition of “optic”
adjective:
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Of, or relating to the eye or to vision.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
Of, or relating to optics or optical instruments.
from Wiktionary, Creative Commons Attribution/Share-Alike License
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noun:
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An eye.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
A lens or other part of an optical instrument that interacts with light.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
A measuring device with a small window, attached to an upside-down bottle, used to dispense alcoholic drinks in a bar.
from Wiktionary, Creative Commons Attribution/Share-Alike License
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